Electronic device and method of preventing erroneous recognizing inserting connector into earphone jack

Abstract

An electronic device includes a circuit electrically connected to first and second contacts and a processor electrically connected to the circuit, wherein the circuit compares a first signal occurring by an electrical contact of the first contact and the external material with a first threshold value to generate a first comparison signal, compares a second signal occurring by an electrical contact of the second contact and the external material with a second threshold value to generate a second comparison signal, and generates a third signal based on a portion of the first and second comparison signals and provides the third signal to the processor, wherein the external material includes one of moisture and a foreign substance or the external connector, and the processor prevents recognizing a contact of the moisture or the foreign substance as a contact of the external connector based on a portion of the third signal.

Description

PRIORITY[0001]This application claims priority under 35 U.S.C. §119(a) to Korean Patent Application Serial No. 10-2015-0090023, which was filed in the Korean Intellectual Property Office on Jun. 24, 2015, the entire disclosure of which is incorporated herein by reference.BACKGROUND[0002]1. Field of the Disclosure[0003]The present disclosure generally relates to an electronic device, and more particularly, to an electronic device and method of preventing erroneous recognizing inserting of a connector into an earphone jack.[0004]2. Description of the Related Art[0005]With development of mobile communication and processor technology and users wanting new and various functions, mobile terminal devices have been innovated. Such mobile terminal devices provide several forms of video and audio multimedia functions in addition to general communication functions such as audio communication or message transmission and reception.[0006]A terminal device that provides such a multimedia function ...

AI Technical Summary

Benefits of technology

This patent is about a solution to prevent people from inserting earphones into a fake connector on an electronic device. The solution involves using a circuit to compare signals from the earphone with pre-set thresholds to determine if the earphone is connected to a real connector or if it's just moisture or a foreign substance. This way, the electronic device can prevent mistakenly recognizing the earphone as a real connector and avoid any potential damage or malfunctions caused by moisture or foreign substances.

Problems solved by technology

As described above, when moisture or a foreign substance is injected into the connector, a leakage current occurs between internal pins that maintain a predetermined quantity of constant voltage and thus a phenomenon may occur that a voltage of a specific pin is abnormally floated.

Even when a foreign substance besides the earphone plug is inserted into the earphone jack, such abnormal voltage floating may enable the terminal device to erroneously recognize that an earphone device is inserted in the jack and to erroneously operate.

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